Answer to Question #97035 in Mechanics | Relativity for Nouf

Mechanics | Relativity

Question #97035

You run 100 m in 12 s, then turn around and jog 50 m back toward the starting point in 30 s.
a. Calculate your average speed.

Expert's answer

Average speed is given by:

v_{aver}=\frac{S_{total}}{t_{total}}=\frac{S_1+S_2}{t_1+t_2}=\frac{100+50}{12+30}=4.7 m/s

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